effect of different treatments on improving seed germination characteristics of astragalus adscendens and astragalus podolobus

Authors

ali tavili

mahsa mirdashtvan

rezvan alijani

masoud yousefi

salman zare

abstract

nowadays, in many rangelands, due to over grazing, and problems that some plantshave in germination, the rate of forage production is greatly reduced. so to take advantages ofthe benefits of such plants, it is necessary to identify and remove barriers of germination andestablishment of suitable plants. the present study was designed to investigate differenttreatments of breaking dormancy and stimulating seed germination of astragalus adscendensand astragalus podolobus and offer the most effective treatment to enhance germination andgrowth rate. the experiment was conducted using completely randomized design (crd)with four replications. treatments included hot water for 5 minute, 30% hydrogen peroxide for5 minute, 98% sulfuric acid for 5 minute and chilling at 4°c for 10 days. data were collectedfor seed germination percentage, germination rate (gr) and mean germination time(mgt). based on the results, treatment with 98% sulfuric acid for 5 min for a. adscendensand hot water for 5 min for a. podolobus were the best treatments to break dormancy andstimulate seed germination, so that the germination percentage increased from 44% to 82% ina. adscendens and from 28% to 62% in a. podolobus. in a. adscendens 98% sulfuric acidreduced the amount of mgt from 8 days for control treatment to 5 days. in a. podolobus hotwater treatment was more effective on mgt reduction and reduced it from 7 to 5 days.although sulfuric acid had the highest effect in breaking dormancy, but its application in avast scale is not easy, therefore the hot water was suggested as the substitution treatment.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Effect of Different Treatments on Improving Seed Germination Characteristics of Astragalus adscendens and Astragalus podolobus

Nowadays, in many rangelands, due to over grazing, and problems that some plantshave in germination, the rate of forage production is greatly reduced. So to take advantages ofthe benefits of such plants, it is necessary to identify and remove barriers of germination andestablishment of suitable plants. The present study was designed to investigate differenttreatments of breaking dormancy and st...

full text

The Effect of Seed Pre-treatments on Germination of Astragalus gossypinus Seed

DOR: 98.1000/2383-1251.1398.6.95.11.1.1578.41 Extended Abstract Introduction: White Astragalus (Astragalus gossypinus Fisherr.) is one of the valuable plants for producing gum, which is of critical importance in soil conservation and the economy of the country. This plant is propagated by seed; its seeds are in the natural state of dormancy. Therefore, recognizing the factors affecting dorm...

full text

effect of seed priming and irrigation regimes on yield,yield components and quality of safflowers cultivars

این مطالعه در سال 1386-87 در آزمایشگاه و مزرعه پژوهشی دانشگاه صنعتی اصفهان به منظور تعیین مناسب ترین تیمار بذری و ارزیابی اثر پرایمینگ بر روی سه رقم گلرنگ تحت سه رژیم آبیاری انجام گرفت. برخی از مطالعات اثرات سودمند پرایمینگ بذر را بر روی گیاهان مختلف بررسی کرده اند اما در حال حاضر اطلاعات کمی در مورد خصوصیات مربوط به جوانه زنی، مراحل نموی، عملکرد و خصوصیات کمی و کیفی بذور تیمار شده ژنوتیپ های م...

Effects of Different Treatments on Improving Seed Germination Characteristics in Medicinal Species of Origanum vulgare and Thymus transcaspicus

Seed dormancy is a serious limiting factor in revenue of an economically important species to its fullest. Because of the importance of medicinal plants in curing diseases and the shortage of natural habitats, little reproduction rate and mass cutting of trees, it is necessary to program cultivation and naturalization of medicinal plants.  The objectives of this study were to investigate the ef...

full text

effect of bataine and sulphate supplement on wool and milk characteristics and lambs performance in naine ewes

تعداد 20 رأس میش نژاد نائینی 6+-24 ماهه، با میانگین وزن 2/3-+40 کیلوگرم، همراه با 20 رأس بره های آنها در قالب طرح کاملا تصادفی اثر بتائین و مکمل سولفات بر خصوصیات شیر و پشم و عملکرد بره ها بررسی شد. میش ها بطور تصادفی در چهار تیمار قرار گرفتند. تیمارها عبارت بودند از: 1-گروه شاهد 2-بتائین (05/0 درصد ماده خشک) 3-سولفات (24/0 سولفور درصد ماده خشک 4-بتائین هرماه با سولفات. جیره غذائی طبق nrc با مح...

15 صفحه اول

My Resources

Save resource for easier access later


Journal title:
journal of rangeland science

Publisher: islamic azad university, boroujerd branch

ISSN 2008-9996

volume 4

issue 2 2014

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023